said by alkizmo:
85 miles distance (Line of sight)
The antenna would be placed 30 feet above ground.
An antenna 30' off the ground has LOS to an antenna 85 miles away if the far antenna is approximately 3000' tall. Since the tallest structure ever built (Burj Khalifa) is about 2722', and the tallest antenna (KVLY-TV mast) is 2063', you are SOL for a direct LOS signal. With the right equipment, weather, and atmosphere conditions, you might get favorable propagation, but your signal quality will probably be poor.